[Solved] Extract certain substring in Java

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  • String method:

    Use StringUtils.substringBetween() of Apache Commons:

    public static void main(String[] args) {
    String sentence = "User update personal account ID from P150567 to A250356.";
    String id = StringUtils.substringBetween(sentence, "from ", " to");
    System.out.println(id);
}

  • Regex method:

    Use regex from (.*) to, the string surrounded by parentheses is
    called group(1), just extract it:

    public static void main(String[] args) {
    String regex = "from (.*) to";
    String sentence = "User update personal account ID from P150567 to A250356.";
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(sentence);
    matcher.find();
    System.out.println(matcher.group(1));
}

solved Extract certain substring in Java